Quick-release tool connection rod

Abstract

A quick-release tool connection rod is provided, including a main member, a sleeve and at least one locking mechanism. The sleeve is movably on the main member. The at least one locking mechanism includes a skew guide face, an elongate hole and a locking ball, the skew guide face is disposed on the sleeve, the elongate hole is disposed on the main member, and the locking ball is disposed in the elongate hole.

What is claimed is: 
     
       1. A quick-release tool connection rod, including:
 a main member, including a connecting rod and a working socket which are connected to each other, the connecting rod being configured to be assembled to a power tool, the working socket including an interior space and an insertion opening which communicate with each other, the insertion opening being configured for a driving member to be inserted into the interior space; 
 a sleeve, movably sleeved on the working socket, the sleeve including an interior wall face and an exterior wall face, the interior wall face facing the main member, the exterior wall face facing away from the main member; 
 at least one locking mechanism, each said locking mechanism including a skew guide face, an elongate hole and a locking ball, the elongate hole being disposed through the working socket, the elongate hole defining an open direction and an extension direction which are perpendicular to each other, the skew guide face being recessed on the interior wall face and facing the elongate hole, the skew guide face and the working socket defining a first receiving space, the first receiving space communicating with the interior space through the elongate hole, the first receiving space defining a tightening end and a loosening end on the extension direction, the skew guide face being gradually distant radially from the working socket in a direction from the tightening end toward the loosening end, the locking ball moving along the extension direction and movably positioned within the elongate hole along the open direction; 
 wherein when the sleeve moves from a released position to a locked position, the tightening end moves toward the locking ball, the skew guide face biases a part of the locking ball to enter the interior space, and when the sleeve moves from the locked position to the released position, the loosening end moves toward the locking ball, and a part of the locking ball gradually enters the first receiving space and retreats from the interior space; wherein a first elastic member is connected to and between the sleeve and the working socket, and the first elastic member is configured to drive the sleeve to move toward the locked position normally; 
 wherein the sleeve and the working socket define a second receiving space, a protrusion is positioned on the working socket and within the second receiving space, the protrusion divides the second receiving space into a first section and a second section, the first elastic member is received in the first section and respectively connected to the protrusion and the sleeve, a second elastic member is received in the second section and respectively connected to the protrusion and the sleeve, and the second elastic is configured to bias the sleeve to have a tendency to move toward the released position; wherein the first elastic member is greater than the second elastic member in flexibility. 
 
     
     
       2. The quick-release tool connection rod of  claim 1 , further including a magnetic assembly, the magnetic assembly being received in the interior space, the magnetic assembly including a base, a magnet and a third elastic member, the third elastic member being respectively connected to the main member and the base, the magnet being received in the base for magnetically attracting the driving member. 
     
     
       3. The quick-release tool connection rod of  claim 1 , wherein an adjustment groove is recessed on the working socket, the adjustment groove is laterally communicable with an adjusting end of the elongate hole, and the adjusting end is closer to the loosening end than to the tightening end. 
     
     
       4. The quick-release tool connection rod of  claim 1 , wherein the exterior wall face of the sleeve has an anti-slip structure, and the anti-slip structure is for a hand to press thereon. 
     
     
       5. The quick-release tool connection rod of  claim 1 , wherein the sleeve is movable on an axial direction of the working socket, the extension direction of the elongate hole defines the axial direction of the working socket, the open direction of the elongate hole is a radial direction of the working socket, and the tightening end is closer to the insertion opening than the loosening end. 
     
     
       6. The quick-release tool connection rod of  claim 5 , wherein on the extension direction, the skew guide face is greater than the elongate hole in length. 
     
     
       7. The quick-release tool connection rod of  claim 5 , wherein an included angle between the skew guide face and the extension direction is between 3 and 8 degrees.